Опубликована: Янв. 1, 2025
Язык: Английский
Coordination Chemistry Reviews, Год журнала: 2024, Номер 516, С. 215987 - 215987
Опубликована: Май 31, 2024
Язык: Английский
Процитировано
27
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 26, 2025
Abstract Polymeric room temperature phosphorescence (RTP) materials have been well developed and utilized in various fields. However, their fast thermo‐ moisture‐quenching behavior highly limit applications certain harsh environments. Therefore, the preparation of with moisture‐resistant is greatly attractive. Compared common water‐soluble polymers, cycloolefin copolymers (COC) show outstanding hydrophobicity higher rigidity, even at elevated temperatures, being as a promising candidate to prepare suppressed behavior. Herein, type COC bearing hydroxyl, ester, adamantanyl side groups synthesized. After dispersing phosphors into this matrix, resultant composites exhibit full‐color RTP lifetimes 249–590 ms. Their luminescence does not obvious quenching water, acid, alkalinous, reductive, oxidative In presence both rigid matrix phosphors, corresponding composite displays high‐temperature performance. Even 378 K, can emit lifetime 40–98 The these COC‐based for imaging, information encryption, anti‐counterfeiting are thus explored.
Язык: Английский
Процитировано
2
Aggregate, Год журнала: 2025, Номер unknown
Опубликована: Апрель 6, 2025
ABSTRACT Hepatectomy is a critical treatment for liver cancer, but achieving complete tumor removal remains challenging. The development of tumor‐targeting probes capable accurately identifying locations and providing real‐time intraoperative navigation significant clinical importance. We synthesize tumor‐targeted probe by conjugating fibroblast activation protein inhibitor (FAPI) with near‐infrared organic room temperature phosphorescence (RTP) material. then analyze its surgical performance in the cancer model imaging fresh patient‐derived samples. In vivo validation reveals that exhibits optimal intensity within 48 h (8.53 × 10 5 p s −1 cm −2 sr ) an average signal‐to‐noise ratio 16. could effectively identify FAP‐positive samples from patients. successful application phosphorescence‐guided surgery suggests RTP holds translational value serve as auxiliary tool cancer.
Язык: Английский
Процитировано
2
Nano Letters, Год журнала: 2024, Номер 24(42), С. 13307 - 13314
Опубликована: Окт. 10, 2024
Long-wavelength afterglow emitters are crucial for optoelectronics and information security; however, it remains a challenge in achieving high luminescence efficiency due to the lack of effective modulation electronic coupling nonradiative transitions singlet/triplet excitons. Here, we demonstrate an organic-carbon-dot (CD) hybrid system that operates via space-confined energy transfer strategy obtain bright emission centered at 600 nm with near-unity efficiency. Photophysical characterization theoretical calculation confirm efficient can be assigned synergistic effect intermolecular from triplet excitons CDs singlets subluminophores intense restraint decay losses singlet/triplet-state rationally rigidification amination modification. By utilizing precursor engineering, yellow near-infrared 575 680 efficiencies 94.4% 45.9% has been obtained. Lastly, these highly emissive powders enable superior performance lighting security.
Язык: Английский
Процитировано
9
Science China Materials, Год журнала: 2024, Номер 67(11), С. 3531 - 3536
Опубликована: Окт. 11, 2024
Язык: Английский
Процитировано
8
Chemical Communications, Год журнала: 2024, Номер 60(70), С. 9328 - 9339
Опубликована: Янв. 1, 2024
This article summarizes the potential of TPP salts in tuning RTP properties and their applications multi-level information encryption, high-level anticounterfeiting tags, X-ray scintillators.
Язык: Английский
Процитировано
7
Advanced Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 14, 2025
Abstract Organic room‐temperature phosphorescence (RTP) with rich photophysical properties has attracted great interest, but it remains a big challenge to realize pure RTP without fluorescence in steady‐state photoluminescence (SSPL) and blue‐shifted that intrinsically restricted by the spin‐forbidden intersystem crossing (ISC) radiative decay of low‐lying triplet excited state. Herein, two fluorescence‐free molecules based on β‐diketone‐bridged phenoselenazine/phenothiazine are developed, which contain either Se or S heteroatom phosphor significantly promote ISC; and, both isolated J‐aggregated phosphors formed crystal, where J‐aggregation can not only facilitate ISC for also strength emission high phosphorescent quantum yield 22.3%, while affords longer lifetime up 131 ms. Excitingly, (35 nm compare SSPL) from yellow‐green (525 nm) cyan (490 dynamically depending time temperature is observed first time. Experimental theoretical results indicate regulation time/temperature‐dependent attributed different lifetimes aggregated owing dynamic competition between accumulation modes crystal aided interrupted conjugation sp 3 C β‐diketone.
Язык: Английский
Процитировано
1
Journal of Molecular Structure, Год журнала: 2025, Номер 1334, С. 141897 - 141897
Опубликована: Фев. 28, 2025
Язык: Английский
Процитировано
1
Dalton Transactions, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
CDs-LDHs-PVA composite achieves RTP with 205.24 ms lifetime and 5.04% quantum yield, showing excitation-dependent emission for optical anti-counterfeiting encryption.
Язык: Английский
Процитировано
1
Angewandte Chemie, Год журнала: 2025, Номер unknown
Опубликована: Март 12, 2025
Abstract Metal–organic frameworks (MOFs) have been proven promising ultralong room temperature phosphorescence (RTP) materials for anticounterfeit due to their unique optical properties. However, it remains a major challenge achieve the desired phosphorescent properties limited regulatory methods and indistinct mechanism. Herein, coordination solvent second metal ion costrategy is firstly proposed prepare seven robust heterometallic–organic (HMOFs) with two configurations, ZnMg/Ca‐sol [sol = H 2 O, dimethylformamide (DMF), dimethylacetamide (DMA), formyldiethylamine (DEF)] ZnSr/Ba‐H O , exhibiting different RTP. The tunable lifetimes within 14.5–195.4 ms are achieved gradually by altering type of alkaline earth metals, solvent, hydrogen‐bonding in HMOFs. Significantly, theoretical calculations reveal that promotion spin–orbit coupling heavy metals rigid constraint on skeleton result excellent balance between high quantum yield ( Ф P ) long lifetime, especially ZnSr‐H (6.8%, 195.4 ms). Depending wide‐range tuning RTP great stability, HMOFs successfully applied spatial‐time resolved anticounterfeiting multilevel information encryption. This work may provide new approach designing target while resolving contradiction lifetime.
Язык: Английский
Процитировано
1